It's one of those perks that come with Hive account. You automatically have it and can log in with Hive Keychain.Oh but you do have an account: https://nftshowroom.com/xplosive.
And in the future, if I do this again and you are quick, you can tell me to transfer the art straight to any account you wish or transfer it yourself after getting it.
I did not know that the NFT Showroom account automatically comes with a Hive blockchain account. Thank you for mentioning it. Now I successfully logged in on it with the Hive Keychain application.